---
title: "Accessibility Checker Rule Help: Rpt_Aria_ComplementaryLandmarkLabel_Implicit"
---
import "../../../styles/ToolHelp.scss"
import { CodeSnippet, Tag } from "carbon-components-react";

<div className="toolHelp">
<Row>
<Column colLg={16} colMd={8} colSm={4} className="toolHead">

### An element with a `"complementary"` role does not have a visible label

<div id="locLevel"></div>

A unique and visible label is preferred for each element with a `"complementary"` role

</Column>
</Row>
<Row>
<Column colLg={11} colMd={5} colSm={4} className="toolMain">

### Why is this important?

Elements with a `"complementary"` role are a type of region used to enclose content that is complementary to the main content on the page. Providing a visible label for each `"complementary"` region on the page provides better context for all users including people using assistive technologies. These landmark labels help to identify and navigate to the content.

<div id="locSnippet"></div>

### What to do

* For each `<aside>` element or element with `role="complementary"`, set the value of the `aria-labelledby` attribute to the `id` value of any visible text that appropriately and uniquely describes the complementary content.

For example:

<CodeSnippet type="multi" light={true}>&lt;h1 id="weather"&gt;Weather portlet&lt;/h1&gt;
    
&lt;div role="complementary" aria-labelledby="weather"&gt;
...
&lt;/div&gt;</CodeSnippet>

</Column>
<Column colLg={5} colMd={3} colSm={4} className="toolLeft">

### About this requirement

[IBM 2.4.1 Bypass Blocks](https://www.ibm.com/able/requirements/requirements/#2_4_1)
[WAI-ARIA 1.2 Complementary Role](https://www.w3.org/TR/wai-aria-1.2/#complementary)

### Who does this affect?

* People using a screen reader, including blind, low vision and neurodivergent people

</Column>
</Row>
</div>

export default ({ children, _frontmatter }) => (<React.Fragment>{children}</React.Fragment>)
